mapnik/tests/cpp_tests/label_algo_test.cpp

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#include <boost/detail/lightweight_test.hpp>
#include <iostream>
#include <mapnik/geometry.hpp>
#include <mapnik/geometry_adapters.hpp>
#include <mapnik/geometry_centroid.hpp>
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#include <vector>
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#include <algorithm>
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int main(int argc, char** argv)
{
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std::vector<std::string> args;
for (int i=1;i<argc;++i)
{
args.push_back(argv[i]);
}
bool quiet = std::find(args.begin(), args.end(), "-q")!=args.end();
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try
{
// reused these for simplicity
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mapnik::geometry::point<double> centroid;
{
// single point
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mapnik::geometry::point<double> pt(10,10);
BOOST_TEST( mapnik::geometry::centroid(pt, centroid));
BOOST_TEST( pt.x == centroid.x);
BOOST_TEST( pt.y == centroid.y);
}
// linestring with three consecutive verticies
{
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mapnik::geometry::line_string<double> line;
line.add_coord(0, 0);
line.add_coord(25, 25);
line.add_coord(50, 50);
BOOST_TEST(mapnik::geometry::centroid(line, centroid));
BOOST_TEST( centroid.x == 25 );
BOOST_TEST( centroid.y == 25 );
}
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// TODO - centroid and interior should be equal but they appear not to be (check largest)
// MULTIPOLYGON(((-52 40,-60 32,-68 40,-60 48,-52 40)),((-60 50,-80 30,-100 49.9999999999999,-80.0000000000001 70,-60 50)),((-52 60,-60 52,-68 60,-60 68,-52 60)))
#if 0
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// hit tests
{
mapnik::geometry_type pt_hit(mapnik::geometry::geometry_types::Point);
pt_hit.move_to(10,10);
mapnik::vertex_adapter va(pt_hit);
BOOST_TEST( mapnik::label::hit_test(va, 10, 10, 0.1) );
BOOST_TEST( !mapnik::label::hit_test(va, 9, 9, 0) );
BOOST_TEST( mapnik::label::hit_test(va, 9, 9, 1.5) );
}
{
mapnik::geometry_type line_hit(mapnik::geometry::geometry_types::LineString);
line_hit.move_to(0,0);
line_hit.line_to(50,50);
mapnik::vertex_adapter va(line_hit);
BOOST_TEST( mapnik::label::hit_test(va, 0, 0, 0.001) );
BOOST_TEST( !mapnik::label::hit_test(va, 1, 1, 0) );
BOOST_TEST( mapnik::label::hit_test(va, 1, 1, 1.001) );
}
#endif
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}
catch (std::exception const & ex)
{
std::clog << ex.what() << "\n";
BOOST_TEST(false);
}
if (!::boost::detail::test_errors()) {
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if (quiet) std::clog << "\x1b[1;32m.\x1b[0m";
else std::clog << "C++ label algorithms: \x1b[1;32m✓ \x1b[0m\n";
::boost::detail::report_errors_remind().called_report_errors_function = true;
} else {
return ::boost::report_errors();
}
}